Drink coaster



FIG. 1 is a top plan view of a drink coaster showing my design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front plan view thereof rotated 120° from FIG. 3;

FIG. 5 is a back plan view thereof, rotated 120° from FIG. 4; and,

FIG. 6 is a perspective view thereof.

The ornamental design for a drink coaster, as shown and described.